Cleistosphaeridium |
Cleistosphaeridium tribuliferum
|
England(Yorkshire) |
Oxfordian |
|
Cordosphaeridium |
Cordosphaeridium cantharellus
|
W.Germany(Hesse) |
Late Oligocene |
|
Cordosphaeridium |
Cordosphaeridium erectum
|
Canada(Arctic) |
Albian |
Turonian |
Cymatiosphaera |
Cymatiosphaera membranacea
|
France |
Late Cretaceous |
|
Dichadogonyaulax |
Dichadogonyaulax pannea
|
England(Dorset) |
Portlandian |
|
Dichadogonyaulax |
Dichadogonyaulax schizoblata
|
England(Dorset) |
Early Portlandian |
|
Diphyes |
Diphyes monstruosum
|
Kansas |
Albian |
|
Exochosphaeridium |
Exochosphaeridium palmatum
|
France(Normandie) |
Senonian |
|
Exochosphaeridium |
Exochosphaeridium pseudhystrichodinium
|
France(Paris Basin) |
Senonian |
|
Galea |
Galea galea
|
W.Germany |
Middle Oligocene |
|
Galea |
Galea levis
|
W.Germany |
Late Oligocene |
Middle Miocene |
Galea |
Galea lychnea
|
W.Germany |
Middle Miocene |
|
Galea |
Galea twistringiensis
|
W.Germany |
Oligocene |
|
Galea |
Galea xiphea
|
W.Germany |
Middle Miocene |
|
Gonyaulacysta |
Gonyaulacysta
|
France(Pas-de-Calais) |
Oxfordian |
|
Gonyaulacysta |
Gonyaulacysta aculeata
|
Germany(Bavaria) |
Early Kimmeridgian |
|
Gonyaulacysta |
Gonyaulacysta aichmetes
|
England |
Early Cretaceous |
|